I'm certainly not being drawn into a discussion of individual cases on a public forum. This is for several reasons, the main one being that I cannot possibly know all their personal circumstances.
In September, I responded to what was said to be a serious question on gastric banding, which was not acknowledged.
Obesity is a risk factor for several chronic diseases, and the health - related quality of life is worse than that of normal weight adults.
Energy balance is controlled by many factors which include metabolic rate, appetite, diet and physical activity, as I have said before. Uncommon causes include "neuroendocrine disorders" which are beyond the scope of this filipino-uk forum.
As for placebos, how people choose to spend their money is entirely up to them, but I would hope they understand what they are.